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Data Sheet
TPS7H1111-SP and TPS7H1111-SEP 1.5-A,
Ultra-Low Noise, High PSRR Radiation Hardened Low Dropout (LDO) Linear Regulator
1 Features
- Total
ionizing dose (TID) characterized
- Radiation hardness assurance (RHA) availability of 100 krad(Si) or 50 krad(Si)
- Single-Event Effects (SEE)
characterized
- Single-event latchup (SEL),
single-event burnout (SEB), and single-event gate rupture (SEGR) immune up to linear
energy transfer (LET) = 75 MeV-cm2/mg
- Single-event functional interrupt
(SEFI) and single-event transient (SET) characterized up to LET = 75
MeV-cm2/mg
- Ultra-low noise (10 Hz to 100 kHz):
- High power-supply rejection ratio, PSRR
(typ):
- 109 dB at 1 kHz
- 71 dB at 100 kHz
- 66 dB at 1 MHz
- Input voltage range from 0.85 V to 7 V
- Bias supply of 2.2 V to 14 V to minimize
power dissipation
- Output voltage as low as 0.4 V
- Up to 1.5-A output current
- Excellent output accuracy over line and load:
- –1.3% to +1.2% across
temperature
- –0.7% to +0.9% at 25°C
- Low-dropout: 215 mV (typ) at 1.5 A
- Programmable soft-start control (SS_SET)
- Open-drain power good (PG) indicator
- Configurable power good threshold (FB_PG)
- Exposed control loop with the external
compensation STAB pin
- Internal current limit with configurable
behavior
- Current sharing to allow operation of up to 2.9
A
- Military temperature range (–55°C to
125°C)
2 Applications
- Satellite electrical power system (EPS)
- Power for high-speed and high-accuracy circuits
- Data converters: ADCs and DACs
(analog-to-digital and digital-to-analog converters)
- VCOs (voltage controlled
oscillators)
- PLLs (phase-locked loops)
- SerDes (serializers and
deserializers)
- Imaging sensors
- Accurate supply for FPGAs (field
programmable gate arrays) and DSPs (digital signal processors)
- Radiation-hardened ultra-clean analog
supply for space constrained areas
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